Thank you, Marcus. I had not seen that article. I have heard though that African Greys are amazingly bright and can string together sentences quite easily.
By the way have you ever heard of the book "Charlie's World: The Improbable Adventures of a Hong Kong Cockatoo and His American Family"? Charlie was an amazing bird who reportedly spoke several languages, including Chinese, English, Spanish and Crow! His story is quite fascinating. I have only read an article about him in the Houston Post newspaper but I am hoping to eventually read this book and learn more about his life.